View clinical trials related to Infertility.
Filter by:Several studies had analyzed the correlation between embryo transfer operator experience and implantation, clinical pregnancy, abortion and delivery rate. The aim of the present study is determining if the probabilities of embryo implantation and pregnancy are associated to the operator performing the embryo transfer. This study allows following more than 30 different operators in a global period of 20 years with almost 20,000 procedures.
To evaluate the effect of random-start of ovarian stimulation initiated in the early follicular or luteal phase on the pharmacokinetics and follicular dynamics and embryo euploidy rates in oocyte donors treated with identical ovarian stimulation protocols with corifollitropin alfa and GnRH antagonist pituitary downregulation
Tobacco is a male infertility risk factor. Many studies comparing smokers to non-smokers have shown effects on spermatogenesis and the quality of the male gamete. In vitro fertilization success rates are decreased in smokers and in natural procreation the time required to conceive (excellent fertility indicator) seems to be lengthened in the smoker. The prospective study that the investigators propose to carry out would make it possible to know the time required for the repair of the sperm abnormalities and in particular the DNA of the gametes generated by the smoking.
Despite the great progress in understanding the causes of infertility, the reason for the failure of pregnancy has not been discovered among 25% of infertile couples. Some studies have shown the negative impact of periodontal disease on the reproductive potential of women. It is known that there is an elevated level of matrix metalloproteinase 8 (MMP8) in the gingival fluid of patients with periodontitis. It is possible to establish a fast diagnosis of periodontitis by using a non-invasive assay based on monoclonal antibodies to two epitopes of MMP-8. The goal of the research is to use the above described assay in order to compare the level of MMP8 in the gingival fluid of infertile patients with the control group of fertile women, depending on the existence of periodontal disease. It is expected to find significantly higher values of MMP8 in infertile patients in relation to the fertile patient with/without periodontitis. The prompt treatment of periodontitis in preconception care of this group of women could have a significant impact on the improvement of fertility and ability to achieve pregnancy.
The investigators analyzed a group of infertile women treated with Ulipristal Acetate (UA) for uterine fibroids at the Humanitas Fertility Center. All the patients' data were extracted from the Fertility Center external-audit-anonymized electronic research query system.
Infertile men due to oligoasthenospermia with non-tense hydroceles are subjected to ICSI
Abnormal chromosome number, or aneuploidy, is common in human embryos. It is responsible for more than half of all miscarriages, and it is the leading cause of congenital birth defects. Besides, it has been described that aneuploidy may also affect embryo implantation. Therefore, selecting embryos that have the best chance of implanting and growing into a healthy baby is one of the most important steps in the field of assisted reproduction. Recent advances in genetic technologies, such as Next-Generation Sequencing (NGS), have allowed aneuploidy to be detected with greater sensitivity. The application of this technique to trophectoderm biopsies, taken from embryos before transfer to the uterus, has provided insight into the clinical impact of chromosomal status. This process of screening embryos to make sure they have the right number of chromosomes and to look for any structural abnormalities in the chromosomes is called Preimplantation Genetic Testing for Aneuploidy (PGT-A). It requires specific equipment and trained personnel that will add costs and risks, so non-invasive techniques are sought as an alternative. These non-invasive procedures have been explored by some groups analyzing the spent culture medium where the embryo is cultured up to the time of transfer or freezing. In daily routine, this media is discarded after finishing the embryo culture, but it has been reported that contains traces of embryonic cell-free DNA (cfDNA) that can represent the genetic load of the embryo. However, at the moment there is a high variability in results across studies, with a percentage of concordant results between the media and the trophectoderm biopsy ranging from 3.5 to 85.7%. Thus, the main objective of this project is to validate a new non-invasive method for PGT-A (niPGT-A), based on improved collection and analysis of the culture media to achieve higher rates of sensitivity and specificity and to decrease the effect of some intrinsic difficulties such as low embryonic cfDNA input, mosaicism and maternal contamination.
Patients in the study will be grouped as 1st group Propofol, 2nd Group Sevofluran.Preoperative blood will be taken from the patients and cortisol, acth, glucagon, aldosterone, PGE2, CRH will be studied. During the operation, the patient's systolic blood pressure, diastolic blood pressure, mean arterial pressure, heart rate, oxygen saturation will be followed. Analgesia will be provided according to the body movements of the patient and VAS measurement will be performed. The patient's pain will be assessed by the VAS (Visuel Analogue Scale) scoring system and during the first hour postoperatively after the patient's consciousness is complete . Hormones such as cortisol, acth, glucagon, aldosterone, PGE2, CRH will be studied biochemically in the follicular fluid and blood of the patient postoperatively. The aim of in the study is to compare the effect of propofol and sevoflurane routinely applied in IVF centers on postoperative pain scores and stress hormones in blood and follicular fluid in a painful and stressful application of egg collection
This study is for evaluating safety and efficacy of Recombinant human follicle-stimulating hormone (Follitrope) injection compared with Gonal-F® Pen undergoing controlled ovarian hyper stimulation in vitro fertilization - embryo transfer (IVF-ET) in China
Embryonic aneuploidy is the underlying etiology for the majority of failed implantation and miscarriage. Preimplantation genetic screening (PGS) with transfer of a euploid embryo has been advocated as a strategy for increasing live birth rates with a single embryo transfer. Culturing embryos to the blastocyst stage for trophectoderm biopsy is a requirement for PGS. Several commercially-available single-step embryonic culture media with varying composition have been established for use in the IVF laboratory. Early reports have suggested differences in clinical outcomes, such as aneuploidy and miscarriage rates, with distinct culture media currently in standard use. However, there have been no clinical trials demonstrating the superiority of any one commercially-available culture media formulation. As a result, clinics use media with varying composition based upon familiarity and cost.